package com.nowcoder.community.util;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;

public class CookieUtil {

    public static String getValue(HttpServletRequest request,String name){
        if(request == null ||name == null){
            throw new IllegalArgumentException("参数为空");
        }
        Cookie [] cookies =request.getCookies();
        if(cookies != null) {
            for (Cookie cookie :cookies) {
                if (cookie.getName().equals(name)) {
                    return cookie.getValue();
                }
            }
        }

        return null;
    }

}
